Final answer:
To find the median of a, b, c, and d, first arrange the values in ascending order. Then, count the number of values in the set. If the number is odd, the median is the middle value. If the number is even, the median is the average of the two middle values.
Step-by-step explanation:
To find the median of a, b, c, and d, first, arrange the values in ascending order. Then, count the number of values in the set. If the number is odd, the median is the middle value. If the number is even, the median is the average of the two middle values.
Since the range of a, b, c, and d is 10, we know that the values must be close together. Let's say the values are: a = 5, b = 7, c = 9, d = 15. Arrange them in ascending order: 5, 7, 9, 15. Since there are 4 values (an even number), the median is the average of the two middle values. In this case, the median is (7 + 9) / 2 = 8.